Finding the Fourth Proportional to 769,753.25, 1,062,241.13 and 430,253.09
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Solution
The fourth proportional to 769,753.25, 1,062,241.13 and 430,253.09 is: 593,739.00
Step by Step Solution
- Step 1: Write the proportion equation
769,753.25 : 1,062,241.13 = 430,253.09 : x - Step 2: Convert to fraction form
769,753.25/1,062,241.13 = 430,253.09/x - Step 3: Cross multiply
769,753.25x = 1,062,241.13 × 430,253.09 - Step 4: Simplify right side
769,753.25x = 457,032,521,045.12 - Step 5: Solve for x
x = 457,032,521,045.12/769,753.25 - Step 6: Final answer
x = 593,739.00
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.